The Joint Commission, set up after Iran reached the July 14 nuclear deal with major powers, convened on Monday in Vienna for a second time at the level of deputy foreign ministers.
"The atmosphere of the meeting was good and all parties demonstrated the determination to proceed with measures to facilitate the implementation of the Joint Comprehensive Plan of Action," Abbas Araqchi, head of the Foreign Ministry's office for the implementation of the accord, told reporters after the meeting, calling the pact by its official name.
The commission is made up of representatives from all parties to the action plan and is tasked with monitoring it and addressing issues arising from its implementation.
The JCPOA, struck with P5+1 (the five permanent members of the United Nations Security Council plus Germany), will lift sanctions in return for curbs for limited durations on Tehran's nuclear work.
The nuclear negotiator said discussions about a resolution—expected to be adopted by the International Atomic Energy Agency's board of governors by mid-December after considering the results of the agency's probe into Iran's past nuclear activities—were the main focus of the Monday talks.
The resolution is to be drafted by P5+1, in their capacity as board members with a view to closing the agency's investigation, a key step toward Implementation Day when Iran is confirmed to have complied with all its commitments.
Iran has announced that it has delayed its nuclear measures pending the closure of the nuclear past file with the IAEA.
After arriving in the Austrian capital on Sunday, Araqchi, along with another deputy foreign minister Majid Takht-Ravanchi, met the Chinese delegation as well as European Union's Deputy Secretary-General for Political Affairs Helga Schmid.
"It lasted for two and a half hours and mainly covered discussions on the resolution," Araqchi said of the meeting with Schmid in an interview with state TV on Sunday.
"Issues related to the implementation of the JCPOA and preparations for Implementation Day were also discussed," IRNA quoted him as saying.
